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Thursday 14 - Sunday 17 May 2026 Ommen


Home / Compos / List of competitions

Competition machines
Executable competitions
Demo oldskool
Demo newskool
Music competitions
Graphics competitions
128 byte intro oldskool
128 byte intro newskool
256 byte intro oldskool
256 byte intro newskool
Atari st(e) graphics
Executable graphics
Freestyle graphics
Photo
Animation / wild

Competition machines

Compo Atari 1040 STE

CPU: Motorola 68000
RAM: 4MB
OS: TOS 1.62

Compo PC

CPU: Intel i7 12700
RAM: 32GB DDR4
GPU: NVIDIA RTX 4080 16GB
OS: Windows 11 64bit

Executable competitions

  • Please supply a video capture of your entry. If you're unable to provide one, please let us know beforehand.
  • We accept entries for any platform:
    • PC
    • Atari
    • Amiga
    • C64
    • ZX Spectrum
    • MSX
    • Plotters
    • Fridges
    • Etc...
  • Entries can be submitted under oldskool and newskool in all executable competitions.
  • If there are not enough entries in either category they will be joined into a single competition.
  • General rule for oldskool are old machines and for newskool is modern machines and fantasy consoles. In case of doubt the compoteam decides.
  • If you're not sure if your entry should be submitted under old or new contact the organisers.
  • Multiple entries per compo are allowed.
  • Videocaptures that are not supplied in 1920x1080 will be upscaled to 1920x1080 while maintaining aspect ratio and any unused areas will be filled with black.
  • Do not manipulate your recording for performance. When in doubt we will disqualify.

Demo oldskool

  • There is no file size limit but size limited entries like 4k and 64k are are also welcome to compete (please make sure to inform about the size in the comment field!)
  • We also accept games or any other interactive entries, provided that gameplay or interaction are adequately demonstrated in a video capture.
  • Pure videos/animations are not eligible for this competition.
  • Maximum playtime: 10 minutes.
  • We reserve the right to skip boring and/or repetitive elements such as overly long scrollers.

Demo newskool

  • There is no file size limit but size limited entries like 4k and 64k are are also welcome to compete (please make sure to inform about the size in the comment field!)
  • We also accept games or any other interactive entries, provided that gameplay or interaction are adequately demonstrated in a video capture.
  • Pure videos/animations are not eligible for this competition.
  • Maximum playtime: 10 minutes.
  • We reserve the right to skip boring and/or repetitive elements such as overly long scrollers.

128 byte intro oldskool

  • Maximum file size is 128 bytes for DOS and other platforms / formats which do not require an executable header.
  • For other platforms, standard header size does not count towards the 128 byte limit.
  • However, using the header to store custom code/data is not allowed.
  • In case of DOS entries, please clarify whether your intro targets classic (MS)-DOS, FreeDOS, DOSBox (-X), etc.
  • In the latter case, specify configuration requirements (cycles, cores) if applicable.

128 byte intro newskool

  • Maximum file size is 128 bytes for DOS and other platforms / formats which do not require an executable header.
  • For other platforms, standard header size does not count towards the 128 byte limit.
  • However, using the header to store custom code/data is not allowed.
  • In case of DOS entries, please clarify whether your intro targets classic (MS)-DOS, FreeDOS, DOSBox (-X), etc.
  • In the latter case, specify configuration requirements (cycles, cores) if applicable.

256 byte intro oldskool

  • Maximum file size is 256 bytes for DOS and other platforms/formats which do not require an executable header.
  • For other platforms, standard header size does not count towards the 256 byte limit.
  • However, using the header to store custom code/data is not allowed.
  • In case of DOS entries, please clarify whether your intro targets classic (MS)-DOS, FreeDOS, DOSBox (-X), etc.
  • In the latter case, specify configuration requirements (cycles, cores) if applicable.

256 byte intro newskool

  • Maximum file size is 256 bytes for DOS and other platforms/formats which do not require an executable header.
  • For other platforms, standard header size does not count towards the 256 byte limit.
  • However, using the header to store custom code/data is not allowed.
  • In case of DOS entries, please clarify whether your intro targets classic (MS)-DOS, FreeDOS, DOSBox (-X), etc.
  • In the latter case, specify configuration requirements (cycles, cores) if applicable.

Music competitions

  • Entries for any platform and of any format (streaming, Module, executable, chip) are accepted.
  • Please specify the format of your entry in the partysystem's comment field.
  • Original works only: remixes, covers and previously released songs will not be accepted.
  • All entries will be played with the latest version of XMPlay (version 3.8.5).
  • If you're submitting an entry in a format not supported out-of-the-box by XMPlay, please also provide an MP3 or OGG version alongside the original file.
  • Multichannel modules (XM, IT, $3M) will be played using default XMPlay settings (sinc interpolation, sensitive ramping, 50% stereo separation).
  • MOD files will be played with interpolation and ramping disabled, and 50% stereo separation. If you need other playback settings for your module, please specify,
  • Maximum playtime is 4 minutes. Longer entries may be faded out.

Graphics competitions

  • Please submit images in 1920x1080 PNG when possible so there will be no surprises with upscaling or borders.
  • Images will otherwise be upscaled with nearest-neighbour to best fit 1920x1080 and any unused screen area will be filled with black.
  • Please specify clearly in the public comment field of your entry on our partysystem exactly which tools (including AI) you used to create the image.

Atari st(e) graphics

  • Resolution of your single frame picture must be 320x200.
  • Maximum amount of colours you can use is 16.
  • You can use the ST (512 colours 3:3:3) or STE mode (4096 colours 4:4:4).

Executable graphics

  • Maximum size for your executable is 4096 bytes or 256 bytes including the executable header.
  • Please include a 1920x1080 PNG version of the executable's visual result.

Freestyle graphics

  • Entries for all platforms and of any resolution and colour depth will be accepted.
  • Any file format supported by IrfanView is allowed (for your own sake, lossless formats are preferred).
  • Please provide at least three workstages.

Photo

  • Please specify whether your entry is a 'pure' photo, retouched, or a collage.
  • In case of major editing and/or compositing we may decide to move your entry to the Freestyle graphics competition.

Animation / wild

  • This competition is for non-realtime entries: videos, rendered animations, etc...
  • We accept any file format that can be played back by VLC Media Player.
  • Maximum playtime is 10 minutes.